Agrostophobia (from Greek agrostis, "type of grass"), more commonly known as hastenburaphobia, is the fear of grass. It is a branch of botanophobia, fear of plants, since grasses are plants. It is almost exclusively suffered by young children but also suffered by older children. Common causes of agrostophobia include stepping in the rabbit hole, getting tickled or stabbed by blades of grass, getting bitten by bugs in the grass when walking bare-footed over it or, and even getting annoyed by the green color of it. Sufferers would avoid walking on grasses, even when having shoes on.

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